Tags

Type your tag names separated by a space and hit enter

Structure and properties of highly toughened biodegradable polylactide/ZnO biocomposite films.
Int J Biol Macromol. 2014 Mar; 64:428-34.IJ

Abstract

Zinc oxide (ZnO) powder was investigated in terms of its use as filler in order to improve the inherent properties of PLA. Biocomposite films of PLA with different loadings of ZnO were prepared by solution casting method. Morphological analyses using SEM and POM showed that the ZnO particles were well dispersed at low ZnO loading, with starfish-like morphology. However, ZnO agglomeration was found at higher ZnO loadings. Tensile testing showed improvements in strength and a moderate improvement in toughness at 2 wt% ZnO loading. This is consistent with the homogeneous dispersion of ZnO particles in the PLA matrix. ZnO particles incorporation improved the thermal stability of PLA. In summary, ZnO particles were shown to have the potential as a toughener in the preparation of biocomposites with better integrity, although other approaches, such as the use of compatibilizer in the surface modification of ZnO will be needed for the concurrent improvement of PLA properties.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Jayaramudu J
Tshwane University of Technology, Department of Chemical, Metallurgical and Materials Engineering, Pretoria, South Africa; DST/CSIR Nanotechnology Innovation Centre, National Centre for Nano-Structured Materials, Council for Scientific and Industrial Research, P.O. Box 835, Pretoria, South Africa. Electronic address: jayaramphd@gmail.com.
Das K
Centre for Quality Assurance & Non Destructive Evaluation Sathyabama University, Chennai-600119, India. Electronic address: kunalchemdas@gmail.com.
Sonakshi M
Department of Polymer Science & Technology, University of Calcutta, Kolkata, India.
Siva Mohan Reddy G
Tshwane University of Technology, Department of Chemical, Metallurgical and Materials Engineering, Pretoria, South Africa.
Aderibigbe B
Tshwane University of Technology, Department of Chemical, Metallurgical and Materials Engineering, Pretoria, South Africa.
Sadiku R
Tshwane University of Technology, Department of Chemical, Metallurgical and Materials Engineering, Pretoria, South Africa.
Sinha Ray S
DST/CSIR Nanotechnology Innovation Centre, National Centre for Nano-Structured Materials, Council for Scientific and Industrial Research, P.O. Box 835, Pretoria, South Africa.

MeSH

Biocompatible MaterialsMaterials TestingMechanical PhenomenaMicroscopy, Electron, ScanningPolyestersThermogravimetryX-Ray DiffractionZinc Oxide

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24380815

Citation

Jayaramudu, J, et al. "Structure and Properties of Highly Toughened Biodegradable polylactide/ZnO Biocomposite Films." International Journal of Biological Macromolecules, vol. 64, 2014, pp. 428-34.
Jayaramudu J, Das K, Sonakshi M, et al. Structure and properties of highly toughened biodegradable polylactide/ZnO biocomposite films. Int J Biol Macromol. 2014;64:428-34.
Jayaramudu, J., Das, K., Sonakshi, M., Siva Mohan Reddy, G., Aderibigbe, B., Sadiku, R., & Sinha Ray, S. (2014). Structure and properties of highly toughened biodegradable polylactide/ZnO biocomposite films. International Journal of Biological Macromolecules, 64, 428-34. https://doi.org/10.1016/j.ijbiomac.2013.12.034
Jayaramudu J, et al. Structure and Properties of Highly Toughened Biodegradable polylactide/ZnO Biocomposite Films. Int J Biol Macromol. 2014;64:428-34. PubMed PMID: 24380815.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Structure and properties of highly toughened biodegradable polylactide/ZnO biocomposite films. AU - Jayaramudu,J, AU - Das,Kunal, AU - Sonakshi,M, AU - Siva Mohan Reddy,G, AU - Aderibigbe,B, AU - Sadiku,Rotimi, AU - Sinha Ray,Suprakas, Y1 - 2013/12/28/ PY - 2013/11/25/received PY - 2013/12/19/accepted PY - 2014/1/2/entrez PY - 2014/1/2/pubmed PY - 2014/10/10/medline KW - Casting KW - Mechanical properties KW - Polymer-matrix biocomposites KW - Thermal properties SP - 428 EP - 34 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 64 N2 - Zinc oxide (ZnO) powder was investigated in terms of its use as filler in order to improve the inherent properties of PLA. Biocomposite films of PLA with different loadings of ZnO were prepared by solution casting method. Morphological analyses using SEM and POM showed that the ZnO particles were well dispersed at low ZnO loading, with starfish-like morphology. However, ZnO agglomeration was found at higher ZnO loadings. Tensile testing showed improvements in strength and a moderate improvement in toughness at 2 wt% ZnO loading. This is consistent with the homogeneous dispersion of ZnO particles in the PLA matrix. ZnO particles incorporation improved the thermal stability of PLA. In summary, ZnO particles were shown to have the potential as a toughener in the preparation of biocomposites with better integrity, although other approaches, such as the use of compatibilizer in the surface modification of ZnO will be needed for the concurrent improvement of PLA properties. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/24380815/Structure_and_properties_of_highly_toughened_biodegradable_polylactide/ZnO_biocomposite_films_ DB - PRIME DP - Unbound Medicine ER -